Sheet-metal blacking-box.



F. EBERHART.

SHEET METAL BLACKING BOX.

APPLICATION FILED SEPT.28. 1911.

Patented Aug. 3, 1915.

Inventor Iax ,E'berlza'rf UNITED STATES PATENT OFFICE.

FELIX EBERHART, OF NEW YORK, N. Y., ASSIGNOR TO AMERICAN CAN COMPANY, OFNEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

SHEET-METAL BLACKING-BOX.

Specification of Letters Patent.

Patented Au". 3, 1915.

To all whom. it 112 my concern.

Be it known that I, FELIX Ennnnaa'r, a citizen of the United States,residing in New York, in the county of New York and State of New York,have invented a new and useful improvement in Sheet-Metal Blaclting-lioxos, of which the following is a specifieation.

My invention relates to improvements in sheet metal blocking boxes.

The object of my invention is to provide a sheet metal shoe polish orblackmg box of a simple construction, capable of being cheaplymanufactured, that may be t ghtly and securely closed so as to excludemr and properly keep the contents from deterioration and at the sametime be capable of bein, easily and conveniently o ened and repeatedlyclosed air ti ht or so )Stlll'llllflll air tight as required, am inwhich the b0 y of the box will have a smooth mouth entirely free fromany raw or cut edge liable to inj fire the bristles of the brush or thehands of the person using or handlin the box.

To practically accom lish this ObJGCt OI' result, I provide the b0 y ofthe box, which is preferably of a one piece seamless drawn construction,at its upper or mouth end with an internal annular roll, preferablycircular in cross section, and provide the cover which is also of a onepiece seamless drawn construction, with a friction seat wall adapted tofit within and tangentially enga e the internal annular roll on the body0 the box and form an air tight or substantially air tight closuretherewith, the inside fitting friction seat wall of the cover having anannular roll or rim at its upper edge, which, by engagement with theannular roll on the box body serves as a sto to limit the extent towhich the cover may lie forced within the box body and also as a pry-offrim for levering up or wedging off the cover; the rolled rim of thecover having a plurality of offsets therein to form recesses or slots toreceive a coin, blade or other implement for wedging off or leverin upthe cover. As the cover is inside fitting and has only a tangential,narrow or line-like contact with the internal annular roll or frictionseat wall of the box body, the cover may be quite easily pried up orremoved, however tightly it ma be forced within the mouth of the ox boy. p

In the accompanying drawing forming a part of this specification, Figure1 is a plan view of a blacking or shoe polish box embodying myinvention. Fig. 2 is an elevation; Fig. 3 a central, vertical section online of Fig. 1; Fig. l a bottom plan view of the cover and Fig. 5 acentral section on line 5-5 of Fig. 1.

In the drawing, 1 represents the sheet metal body of the box, the samebeing of a one piece, seamless drawn construction and having an integralbottom 2 and an integral internal annular roll 3 at its upper or monthend, the innermost portion 4 of which annular roll affords a smooth,continuous and seamless narrow or line-like friction seat wall forengagement with the coacting friction seat wall of the cover. Thefriction closure cover 5 of the box is of a one piece seamless, drawnconstruction, and is provided with a slightly wedging or flaring insidefitting annular friction seat wall (5 separated by an annular channel 7from the dome shaped center 8 of the cover and terminating at its uppered e in an annular roll or pry-off rim 9, which rim 9 is furnished atintervals with offsets 10 in its lower face to form slots or recesses 11for reception of a coin, blade or other implement for wedging off orprying up the cover; while the portions lilbetween the slots 11 serve byengagement with the rolled rim 3 of the box body as stops to limit theextent to which the cover may be forced within the mouth of the body.The ofl'sets 10 may be formed either by flattening or closing togetherthe walls of the rolled rim at segments thereof or b notching or cuttingout the cover blanc from which the rolled rim is formed as may bepreferred.

As the friction seat wall (3 of the cover has a narrow, line-like ortangential contact only with the friction seat wall 4 of the box body,the cover may be forced within the mouth of the box body very tightlyand snugly so as to effect an air tight closure without interfering withthe convenient and cas opening of the box.

claim 1. A metal box comprising a drawn sheet metal body provided at itsopen end with an internal annular roll, and a drawn sheet metal coverthe edge of which extends upward and outward to form a flaring annularfriction seat wall the said flaring seat wall engaging tangentially, andby a straight inward movement, with and wedging in the said internalroll of the body.

2. A metal box comprising a drawn sheet metal body provided at its openend with an internal annular roll, and a drawn sheet metal cover havinga. dome-shaped central portion the edges of which descend to a sharpbend, from which bend the metal of the cover extends upward and outwardto form an annular channel and a flaring annular friction seat wallterminatin m an exterior downward roll, the said fiarmg seat wallengaging tangentially, and by a straight inward movement, with andwedging in the said internal roll of the body.

3. A container of the'character described including, a drawn sheet metalbody provided at its month end with an internal annular roll, and asheet metal cover having an upwardly extended, dome-shaped, centralportion, and upwardly and outwardly inclined friction seat wall adaptedto frictionally engage the roll of the body, and a FELIX EBERHART.

Witnesses W. D. FOSTER, C. W. GRAHAM.

